mailfilters folder

I'm Using long time ago ispcofig 3.0.3 perfect server Centos distro
maildrop, postfix, courier I only use it for email

suddenly the filters stop working! no updates, no nothing.

I remember that if I made a filter or rule like fwd an email etc. It will create the domain/user and .mailfilter or .autoresponter in the mailfilters dir in /var/vmail

can someone guide me to see whats is going on what can I check? In ISPconfig LOG i got only
06.09.2013-15:29 - DEBUG - There is already an instance of server.php running. Exiting.
06.09.2013-15:30 - DEBUG - There is already an instance of server.php running. Exiting.
06.09.2013-15:31 - DEBUG - There is already an instance of server.php running. Exiting.
06.09.2013-15:32 - DEBUG - There is already an instance of server.php running. Exiting.
06.09.2013-15:33 - DEBUG - There is already an instance of server.php running. Exiting.
06.09.2013-15:34 - DEBUG - There is already an instance of server.php running. Exiting.